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J Agric Food Chem

Title:		Bound volatile precursors in genotypes in the pedigree of 'Marion' blackberry (Rubus sp.)
Author(s):		Du X; Finn CE; Qian MC;
Address:		"Department of Food Science & Technology, Oregon State University, Corvallis, Oregon 97331, USA"
Journal Title:		J Agric Food Chem
Year:		2010
Volume:		58
Issue:		6
Page Number:		3694 - 3699
DOI:		10.1021/jf9034089
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Glycosidically bound volatiles and precursors in genotypes representing the pedigree for 'Marion' blackberry were investigated over two growing seasons. The volatile precursors were isolated using a C18 solid-phase extraction column. After enzymatic hydrolysis, the released volatiles were analyzed using stir bar sorptive extraction gas chromatography-mass spectrometry (GC-MS) and direct microvial insert thermal desorption GC-MS. The most abundant volatile precursors in the genotypes were alcohols, followed by shikimic acid derivatives. High amounts of furanone glycosides were also detected, while norisoprenoids only existed in a small amount in blackberries. The volatile precursor composition in the genotypes in the 'Marion' pedigree was very similar to their free volatile distribution. 'Logan' and 'Olallie' predominantly had bound norisoprenoids. Wild 'Himalaya' predominated with terpene alcohol and furaneol glycosides, whereas 'Santiam' and 'Chehalem' contained a high level of terpene alcohol glycosides. A similar inheritance pattern was also observed for some volatile precursors in the genotypes in the 'Marion' pedigree. A high content of linalool, hydroxylinalool, and alpha-ionol glycosides in 'Olallie' and a low content in 'Chehalem' resulted in a moderate level in their offspring 'Marion', while a low content of (E)-linalool oxide precursor in 'Olallie' and a high content in 'Chehalem' also resulted in a moderate level in 'Marion'. However, the concentration of furaneol glycosides in 'Marion' exceeded that of its two parents"
Keywords:		Fruit/chemistry/genetics Genotype Rosaceae/*chemistry/genetics Volatile Organic Compounds/*analysis;
Notes:		"MedlineDu, Xiaofen Finn, Chad E Qian, Michael C eng 2010/03/03 J Agric Food Chem. 2010 Mar 24; 58(6):3694-9. doi: 10.1021/jf9034089"